Quarterly report pursuant to Section 13 or 15(d)

Income taxes - Narrative (Details)

v3.21.2
Income taxes - Narrative (Details)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2020
Income taxes          
Effective income tax rate 6.50% 49.80% 4.40% 32.40% 11.70%
Foreign rate differential     21.00%